Trying to clear up some confusion I've seen on this thread (I was rather confused as well until I read the actual amendment being proposed)
A lot of people (other blogs and websites included) are saying that ALL pythons, including the ball python, would be banned. According to the species listed in the legislation this is not correct.
The legislation is written very clearly as to what species they are talking about, and I googled the names to verify which breeds these are and ball python (Python Regius) is not included.
http://www.opencongress.org/bill/111-s373/show